I recently started working at a new company and have started off by documenting their already existing network. I've discovered something I've never seen before and my google-fu is failing me. In several spots on the network, there are switches connected together by multiple physical connections. On switch-1, each interface is configured as an L3 interface with an IP and a significant amount of IP PIM configs for multicast addresses. On Switch-2, they are configured to be a part of a port-channel with incongruent IP addresses. (see linked picture for a visual example, I've changed the IP addresses for privacy)
https://i.imgur.com/DmhcVVy.png
I have a good grasp of how multicast works, but it isn't something that I have had a lot of practical experience with. However, this configuration just seems incorrect to me, and I can't for the life of me understand why it was done this way, or even how it is working correctly. If anyone has any ideas, I'd love to hear them.
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